Electrical receptacle



Oct., 28, 1947. G. aBl-:NANDER v ELECTRICAL RECPTCLE original Filed March 24,v 1945 f wm di 9.

ITM/enter` George B.\Bena-nder`,'

bg His Attorneg.

Patented Oct. 28, 1 947 ELECTRICAL RECEPTACLE George B. Benander, Oaklawn, R. I., assignor to Monowatt Electric Corporation, a corporation of Connecticut Original application March 24, 1943, Serial No. 480,348. Divided and this application September 8, 1945, Serial No. 615,135

This application is'a division of my application Seri-a1 No. 480,348, led March 24, 1943, Electric connector.

The invention relates to electrical receptacles or sockets and has for its object to provide animproved construction and arrangement which is simple in structure, reliable in operation, and capable of being manufactured and assembled at low cost.

For a consideration of what I believe to be novel and my invention, attention is directed to the following specification and to the claims appended thereto.

In the drawing, Fig. 1 is .a sectional view of a receptacle embodying my invention; Fig. 2 is a perspective View, partly broken away, of the 1'eceptacle; Fig. 3 is a perspective View of one of the contacts; Fig. 4 is a perspective view of the receptacle viewed from an angle dilferent from that of Fig. 2, and Fig. 5 is -a detail perspective view of a clamping ring.

Referring to the drawing, the receptacle comprises an insulating molded block I having a plurality of bores 2 and an insulating 'disk or cover 3 having bores 4 aligned with the bores 2. The block I and the disk 3 in accordance with my invention are secured together by means of a 'dove-tailed snapring 5 (Fig. 5) which has a cylindrical ring segment of about 180 angular degrees and opposed dovetailed projections 6, 'I extending axially from opposite sides of the segment at its ends. The insulating block I has a collar 8 spaced from its upper end and the disk 3 has a similar collar 9 spaced from its lower end. Thus, when the block I and the disk 3 are assembled there is defined between the collars 8 and 9 an outer circumferentially extending groove I0 for receiving the dovetailed snapring 5. The collars 8 and 9 are cut away to provide dovetailed recesses II'Iab for receiving the dovetailed projections 6, 'I of the snapring. When inserted into these recesses the dovetailed snapring holds the block I and the disk 3 together.

Mounted in the bores 2, 4 are terminal contacts II held between shoulders I2 at the lower ends of bores 2 and the under side of disk 3, the contacts II being provided with struck-out tongues I2al which engage the disk. Each contact II comprises a tube formed from sheet stock rolled into a cylinder, the seam between the edges being indicated at I3. At its upper end it is cut away to provide a recess I4 in which may be positioned and soldered the bared end of a conductor I5. The other end of the cylinder forms a socket I3 to receive a pin contact. Between the recess I4 5 Claims. (Cl. 173-328) and the socken ls is a partition Wan or dem l1 which serves to prevent solder from running down into the socket when a wire is being soldered in the recess. Partition wall or dam I1 is in the form of a short pin which is positioned in the contact and held by grooves or indentations I8 formed in the wall of the contact. Each contact has a notch I9 at its lower end which ts over a projection 20 at the lower end of bore 2 to position the contact circumferentially and prevent its turning.

In wiring the receptacle, the conductors I5 may be soldered or attached in other suitable manner in the recesses I4 of terminal contacts II after the contacts have been assembled in the receptacle housing. Or, the conductors may be attached to the terminal contacts prior to the contacts being assembled in the receptacle housing in which case the two parts I .and 3 of the housing are first connected together after which the terminal contacts with the conductors attached are inserted into the bores of the housing, struck-out tongues I2EL yielding as the contacts are pushed into the bores and then springing out beneath the under side of disk 3 as shown in Fig. 2.

By my invention, I provide a structure which comprises a minimum of parts and which can be quickly assembled at low labor cost. In assembling the structure, it is necessary merely to drop the contacts in bores 2, position the disk or cover 3 over their outer protruding ends and put the snapring 5 in place.

What I claim as new and desire to secure by Letters Patent of the United States is:

1. A receptacle for electrical connectors comprising a block havin-g a plurality of bores enlarged at one end thereof, a disk engaging the block and having a plurality of bores in alignment with the rst mentioned bores, means including a dovetailed snapring securing the disk to the block, a plurality of terminal contacts each disposed in a pair of aligned bores and having a lateral projection located in the enlarged end of the bore in the block and engaging the adjacent surface of the disk.

2. A receptacle for electrical connectors comprising a block having a plurality of bores enlarged at one end thereof, a disk engaging the block and having a plurality of bores in alignment with the first mentioned bores, means including a dovetailed snapring securing the disk to the block, a plurality of terminal contacts each -disposed in a pair of aligned bores `and having a lateral projection located in the enlarged end of the bore in the block and engaging the adjacent surface of the disk, and means for angularly positioning each terminal contact.

3. A receptacle for electrical connectors lcomprising a block, a disk engaging the block and forming therewith an outer circumferentially extending groove with axially extending dovetailed recesses, and a dovetailed snapring located in the groove and recesses for securing and angularly positioning the disk on the block.

4. A receptacle for electrical connectors comprising a block, a disk engaging the block and forming therewith an outer circumferentially extending groove with axially extending dovetailed recesses, anda dovetailed snapring located in the groove and recesses for securing and angularly positioning the disk on the block, the disk and block having a plurality of aligned bores, terminal contacts located in the aligned bores, and means including tongue and groove connections between the bores and the terminal contacts for axially and angularly positioning each .contact in a pair ofaligne'd bores.

GEORGE B. BENANDER.

REFERENCES CITED The following references are of record in the le of this patent:

UNITED STATES PATENTS Number Name Date 1,292,840 MacLean Jan. 28, 1919 438,822 Philion Oct. 21, 1890 1,954,051 Moon Apr. 10, 1934 20 2,286,952 Cannon etal. June 16, 1942 

